Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4789523 | Cationic and anionic lignin amines corrosion inhibitors | Peter Schilling | 1988-12-06 |
| 4787960 | Cationic and anionic lignin amine sizing agents | Peter Schilling | 1988-11-29 |
| 4781840 | Cationic and anionic lignin amines as flocculants | Peter Schilling | 1988-11-01 |
| 4775744 | Cationic and anionic lignin amines | Peter Schilling | 1988-10-04 |